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The Best Chamfer Tool of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Chamfer Tool of 2023. Check our ranking below.

2,057 Reviews Scanned

Rank No. #1

Deburring External Chamfering Tool, Chamfer Tool Deburring External Drill High Speed Stainless Steel Burr Removal Bit Quickly Repairs Damaged Metal External Chamfer Deburring Tool (Sliver-2)

Super Durable Hard Steel - Made of extremely hard stainless steel with high strength and hardness for durability, anti-rust and anti-corrosion. It can accompany you for a long time.
Safe and Efficient - The high strength and hardness deburring external chamfer tool easily shave down the outer edges of a bolt, pipe or rod, remove the burr. Quickly repairs damaged bolts and tightens the nuts in place without hurting your hand, no sparks, and no burns. Simplifies the repair process.
Simple Operation - Attaching the deburring external chamfer tool to the end of your power drill, use the lowest speed on the drill bit, and then slightly applying pressure to remove the burr. The tool simplifies the repair process, can reduce repair time and eliminates the need to replace expensive or hard-to-find hardware. Great helper for industry and household.
Widely Application - The chamfer tool effective on stainless steel, hardened steel, mild steel, copper, brass, aluminum, fiberglass, wood, plastic no matter it with or without screw thread. Fits size(approx.):5/16-32 bolts (.164) up to 3/4″-10 (.750) - (8mm -19mm)
Sugelary is a store that values quality of product and our cherished customers buying experience. If you are not satisfied, you can always contact us and we will provide you with the best solution.

Rank No. #2

PLATINUMEDGE Deburring External Chamfer Tool, YG8 Carbide Blade, Deburring Drill Bit, Remove Burr Tools, Quick Release 1/4inch Hex Shank, Repairing Damaged Bolts, Fits for 1/8”-3/4” (3mm-19mm)

【Premium Quality】Made of extremely hard stainless steel with high strength and hardness for durability, YG8 carbide blades, anti-rust and anti-corrosion. It can accompany you for a long time.
【Fit Size】Drill use 0-400 RPMs Fit 1/8”(3mm) to 3/4” (19mm) Round Stock, Bar Stock, Threaded Rod, Screws, and more. Larger extension rod size can withstand greater pressure, and larger application range can be applied to most bolts.
【Widely Application】Effective on Stainless Steel, Hardened Steel, Mild Steel, Copper, Brass, Aluminum, Fiberglass, Wood, and Hard Plastic. Suitable for DIY, Home, General Building, and Engineering Using.
【Easy to Work】Hex shank with quick release design, fits most drills. You need to connect the electric drill, and then slightly applying pressure to remove the burr
【Safety Design】Quickly repairs damaged bolts and tightens the nuts in place without hurting your hand, no sparks, and no burns; Simplifies the repair process.

Rank No. #3

SI FANG Mini Chamfering Machine, 45 Degree Manual Linear Pneumatic Chamfering Tool, High Precision Blade Type Air Beveling Tools Edge Beveler, for Metal Trimming, Arc Corner Deburring

【Easy Operation】: This 45-degree Pneumatic mini chamfering machine air tools has a new lightweight design, small and exquisite, and can be easily operated with one hand. Use the matching wrench to easily adjust the chamfer size and replace the blade.
【Adjustable Speed and Angle : 】: The portable deburring trimming chamfering tool air grinder 1-5 block valve adjustment thickened knob, freely adjust the gear speed you need. The chamfer size can be adjusted at will. The safety switch is used to prevent accidental touch to protect the user's safety at all times. 1/4 inch metal filter, free speed: 30000 RPM, air consumption 0.4/min.
【Stable Speed】: Pneumatic metal beveling tool chamfering tool can withstand high impact and high speed, with little vibration, low resistance and lower loss. The speed is increased and the chamfer is smoother, and the beveling machine is more durable.
【Higher Cutting Efficiency】: The upgraded version of the pneumatic chamfer tool, the new design adopts a new chrome-plated all-aluminum shell with high-quality bearings, and is equipped with high-precision heat-treated blades for better use and smoother deburring and chamfering.
【Purpose】: SI FANG's air beveler grinder Portable Deburring-Trimming chamfering tool adopts the thinnest nut lock bearing at present, which can chamfer in the narrowest and shallowest space, and is suitable for various angles, such as straight edge chamfering, inner and outer round hole chamfering, and irregular chamfering. Angle, keyway polygonal chamfering. Deburring tool for metal trimming and round R side

Rank No. #4

OCGIG 4pcs Titanium Coated Countersink Chamfer Tool Deburring Tool Set Metal Wood Drill Bits Zhongbo Business

Material:HSS（High Speed Steel）4241, Titanium Coated
Application:Ideal for cutting through metal,wood,plastic and thin iron plate (hardness <25 degrees)
Chamfer range:2-5mm, 5-10mm, 10-15mm, 15-20mm, Shank diameter: 6mm, 8mm, 10mm, 12mm, Head diameter: 10mm, 14mm, 21mm, 28mm
90 Degree angle on the point for sharp and precise countersinking, used for workpiece circular aperture chamfering or cone hole
This bits should use the bench drill , it is easy to shake and it will affect the chamfering effect if you use the hand drill

Rank No. #5

ORX PLUS TOOLS Deburring External Chamfer Tool, with HSS Blade, Deburring Drill Bit, Remove Burr Tools Quick Release Shank Fits for 1/8"-3/4"(3mm-19mm)

Easy to work- Attaching the deburring external chamfer tool to the end of your power drill, Use the lowest speed on the drill bit, and then slightly applying pressure to remove the burr.
Cost-Effective- These deburring external chamfer tool can be used for repairing damaged bolt and tightening the nuts in place. You do not need to spend time and money to find hard-to-find or expensive replacement bolts.
Safety Design- Quickly repairs damaged bolts and tightens the nuts in place without hurting your hand, no sparks, and no burns; Simplifies the repair process.
Using proper speeds and feeds-Drill use 0-400 RPMs. Fit 1/8' (3mm) to 3/4' (19mm)
Widely Application-Effectively used in Stainless Steel, Hardened Steel, Mild Steel, Copper, Brass, Aluminum, Fiberglass, Wood, Plastic

Rank No. #6

Deburring External Chamfer Tool, with Tungsten Carbide Blade, Deburring Chamfering Drill Bit, Remove Burr Tools Quick Release Hex Shank. Improved Durability and Sharpness. Fits 1/8" to 3/4".

Easy to use: This deburring external chamfering tool easily shaves down the outer edges of a flatted bolt. Simply attach it to a power drill, apply gentle pressure to the bolt head. Easy and quick fix for the nuts to be tightened.
Improved carbide cutting edge: Razor sharp, maximum efficiency and durability. This demurring external chamfering tool features carbide cutting edge that provides better performance and longevity than counterparts made of materials such as high speed steel.
Optimal compatibility: Hex shank with quick release design, fits most drills. Can be used to repair damaged/flatted bolts of virtually any material.
Size: Fits 1/8' (3mm) to 3/4' (19mm). Operate with sufficient lubrication and less than 500 RPM.
Our promise: Xpecial aims to provide the best professional tools and customer service for DIY enthusiasts and professionals. Should you have any questions or complaints please do not hesitate to get in touch and we will work it out for you.

Rank No. #7

CONQUER Tools Deburring External Chamfer Tool, Premium Tungsten Blade, Deburring Drill Bit, Remove Burr Tools Quick Release Shank Fits for 1/8"-3/4"(3mm-19mm) Stainless Steel Burr Removal, Countersink

PREMIUM Upgraded TUNGSTEN Blade - This demurring external chamfering tool features carbide cutting edge, provides better performance and longevity than high speed steel. Helps professional users and heavy-duty operations to easily deal with hard material like Stainless Steel.
Cost-Effective- These deburring external chamfer tool can be used for repairing damaged bolt and tightening the nuts in place. You do not need to spend time and money to find hard-to-find or expensive replacement bolts.
Safety Design- Quickly repairs damaged bolts and tightens the nuts in place without hurting your hand, no sparks, and no burns; Simplifies the repair process.
CONQUER Deburring External Chamfer Tool using proper speeds-Drill use 0-400 RPMs. Fit 1/8' (3mm) to 3/4' (19mm). Countersink
Widely Application-TUNGSTEN blades. Effectively used in Stainless Steel, Hardened Steel, Mild Steel, Copper, Brass, Aluminum, Fiberglass, Wood, Plastic

Rank No. #8

Odowalker 4 Pcs HSS Deburring External Chamfer Tool,CR12MOV Steel Hex &Triangle Shank Burr Remover for Drill Bit Fits for Bolts 4mm-19mm

Material:High Speed Steel
Size:Suitable for Bolts (4mm/0.16 inches -19mm/0.79 inches)
Easy to Assemble & Use: Fit in drill. Pop it into the drill and apply light pressure to cleaned up the ends of the bolts
Wide Application:High strength, high hardness. Suitable for stainless Steel, Hardened Steel, Mild Steel,Low Carbon Steel,Copper, Brass, Aluminum, Fiberglass, Wood, Plastic, no matter it is with or without screw thread
Safe To Use: Featured with simple and safe design, no cuts, sparks, or burns, fewer injury will happen when using it

Rank No. #9

REED MFG Cone Chamfer Tool

PDEB250

Rank No. #10

ORXPLUS TOOLS 2 in 1 Inner-Outer Reamer, Pipe and Tubing Chamfer Tool for OD 1-1/8" to 3-1/4" ID 1-1/16"to 3-3/8"

【2 in 1 Structure】Complete the inside and outside deburring for plastic pipe with one tool. Just need to flip the tool over to switch between O.D and I.D.
【Efficiently and Fast】With 3/8" shaft and design for power drill use especially. Easily to finish huge quantity of pipe deburring in a short time.
【Wide Application】Effective on PVC, CPVC, PP, PE, PEX, ABS, and soft metal, like Copper, Aluminum, Brass. O.D. size from 1-1/8" to 3-1/4", and I.D. size from 1-1/16"to 3-3/8".
【Long Service Life】ZINC ALLOY body is more durable and can supports long-lasting deburr and increase the product's useful life.
【Warning】Do not use Impact and Hammer Drivers. In a Clockwise Direction only.

Rank No. #11

McJ Tools Reloading Chamfer Deburr Hand Tool 0.17-0.6cal

Multifunctional piece of equipment
High precision and tough durability
Can be used by hand
Handles all cartridge cases from .17 to .6 caliber.
Made of High Speed Steel Grade M2

SaleRank No. #12

toolant Deburring External Chamfer Tool with Carbide Blades, Removing Burr Tools with Quick Release Shank Fits for 3/16"-1"(5mm-25mm).

toolant deburring external chamfer tool has 3 carbide blades, which is higher cutting efficiency and hardness than ordinary high-speed steel tools available in the market. Black oxide exterior coating is used for heat-resistant and anti-corrosion.
This tool takes two additional replacement hex shanks(1/4”) and larger working diameter (3/16”-1”, 5mm-25mm).This tool is a truly effective and durable product.You do not need to spend money to find another expensive replacement bolt.
The hollow-carved design facilitates chip removal while it is deburring.This design can reduce the accumulation of lint during cutting.
Connect the external chamfer to the end of the electric drill, apply light pressure to make the drill run at a low speed and remove burrs easily.
toolant deburring external chamfer tool can be used effectively no matter it with or without screw threads such as every steel, copper, aluminum and fiberglass, providing them with perfect and precise deburring.The crown adopts a hexagonal crown, which can be adapted to most equipment on the market.

Rank No. #13

EZARC Deburring Chamfer Tool Set, 2PCS External Internal Rotary Deburring & Chamfer Tool, External Debur Coverage, Remove Burr for Newly Cut Pipes

【High Efficiency】EZARC 2pcs Deburring External Chamfer Tool is a must-have tool for anyone who needs to smooth out the edges of pipes, tubes, or other cylindrical objects. It includes debur tools covering internal diameters of 1/8”(3mm) to 3/4” (19mm) and internal diameters of 1/8”(3mm) to 5/8” (16mm). It features a 1/4" quick change hex shank. After benchmark testing, we recommend users to use it on electric screwdriver.
【Exquisite Crafts】The internal countersink chamfer is made of M2 high-speed steel, and the surface is black nitrided after heat treatment. The head of the external deburring chamfer is cast with zinc alloy, and the surface is black and bright electrophoretic treatment. 3pc of YG8 carbide teeth blades provide better performance and can withstand frequent use.
【Easy to work】Attaching the deburring external chamfer tool to the end of your power drill, Use the lowest speed on the drill bit 0-400 RPMs, and then slightly applying pressure to remove the burr. NOTE Do not use impact mode.
【Safety Design】The accurate deburring external chamfer tool easily shaves the outer rough edge of bolts, newly-cut pipes or rods, removing burrs to keep edges smooth. Quickly repairs damaged bolts and tightens the nuts in place without hurting your hand, no sparks, and no burns; Simplifies the repair process. The internal deburring tool with 5 flute bit design allows it drilling smoothly in metals, and it can even drill counter sinks.
【Versatile】This tool works on a variety of different materials, including steel, aluminum, and copper, making it an ideal choice for a range of different projects. Order now and experience the convenience and efficiency of the Deburring External Chamfer Tool.

Rank No. #14

JIUNENG 2-in-1 Pneumatic Chamfer Tool,Mini Pneumatic Chamfering Machine Set,Portable Handheld Metal Edge Beveler with Replace Blades for Metal Deburring,45 Degree Arc

【Easy Operation】: This 45-degree mini chamfering machine air tools has a new lightweight design, Two right-angle cutter heads and bearings have been installed on the machine, and two R-angle cutter heads are also equipped.Use the matching wrench to easily adjust the chamfer size and replace the blade.Can be easily operated with one hand.
【Stable Speed】: This portable trimming chamfering tool can withstand high impact and high speed. The speed is increased and the chamfer is smoother with US 1/4 inch metal filter, free speed: 30000 RPM, air consumption 0.4/min.
【Durable】: Pneumatic chamfering tool with 1-5 air intake adjustment, freely adjust the gear speed you need. The safety switch is used to prevent accidental touch to protect the user's safety at all times. Use the matching wrench to easily adjust the chamfer size and replace the blade.Can be easily operated with one hand.
【Higher Efficiency】: The upgraded version of the metal beveling grinder, the new design adopts a new chrome-plated all-aluminum shell with high-quality bearings and blades for smoother deburring and chamfering.
【Application】:JIUNENG's air beveler tool adopts the thinnest nut lock bearing at present, which can chamfer in the narrowest and shallowest space, and is suitable for various angles, such as straight edge chamfering, inner and outer round hole chamfering,irregular chamfering and round R side.

SaleRank No. #15

CZS HSS Deburring External Chamfer Tool High Speed Steel Hex Shank Remove Burr Tools for Drill Bit Fits for Bolts 2 Pack Black

Fitment Bolt Tube Size：(6mm -28mm). Effective on Stainless Steel, Hardened Steel, Mild Steel, Copper, Brass, Aluminum, Fiberglass, Wood, Plastic, no matter it is with or without screw thread.
Exotic Super Hard Steel：made of high speed steel with three shaving teeth,has the feature of high strength and hardness for durability.
The operation is simple, using the lowest speed on the drill bit, and then slightly applying pressure to remove the burr.
This Deburring External Chamfer Tool quickly repairs damaged bolts and tightens the nuts in place, saving you time and money.
NO-RISK PURCHASE!Please feel free to contact the seller if you have any questions about our products. If you’re unsatisfied with this item for any reason, we’ll immediately refund your the full money.

Rank No. #16

AFA Tooling - Countersink Deburring Hand Reamer with Hard HRC64 HSS Steel Head - Deburring Tool Works on Metal, Copper, PVC, Pipes & More - Machinist Tool with Ergonomic Handle

COUNTERSINK HAND REAMER: Sharp 62-64 HRC 90° angled blade, perfect for countersinking and enlarging circular openings in wood, plastic or metal. Also works great for removing burrs around the hole edges. Whether you are an industrial professional or a DIYer, our deburring tools and pipe reamers are great for you!
SUPERIOR QUALITY, COMFORT AND CONVENIENCE: Equipped with an ergonomic wide body handle for secure grip, quality machined parts and a secure case for our extra blades, we know our tool is built to last. Our easy to use housing accepts various swivel head blade types for different applications making it the perfect reamer for PVC, copper, pipes, metal and more.
HIGHLY DURABLE HSS STEEL DEBURRING BLADES: The blades are made of tempered high-speed steel that makes them sharp, strong, and resistant to wear. HSS steel is usually 80% longer lasting then regular steel, and that’s why we use it, because we care about our performance!
OUR GUARANTEE: We have been in business since 2013, and we care about our customers! All our Deburring tools are secured by a 1 year warranty! If you have any issues outside of the usual wear of the blades, we will replace your tool for free. If you have any other questions or concerns please feel free to contact us!

Rank No. #17

BAINUO Manual Pneumatic Chamfering Machine, Mini Portable Linear Chamfering Power Tools, 45 Degree Metal Trimming Arc Corner Deburring Kit Orange

【Easy Operation】: This 45 degree mini Pneumatic chamfering tool has a new lightweight design, small and exquisite, and can be easily operated with one hand. Use the matching wrench to easily adjust the chamfer size and replace the blade.
【Adjustable Speed and Angle 】: The portable deburring trimming air chamfering tool air grinder 1-5 block valve adjustment thickened knob, freely adjust the gear speed you need. The chamfer size can be adjusted at will. The safety switch is used to prevent accidental touch to protect the user's safety at all times. 1/4 inch metal filter, free speed: 30000 RPM, air consumption 0.4/min.
【Higher Cutting Efficiency】: The pneumatic chamfer tool chamfering machine, the new design adopts a new chrome-plated all-aluminum shell with high-quality bearings, and is equipped with high-precision heat-treated blades for better use and smoother deburring and chamfering.
【Purpose】: Portable air chamfering tool air beveling tool grinder adopts the thinnest nut lock bearing at present, which can chamfer in the narrowest and shallowest space, and is suitable for various angles, such as straight edge chamfering, inner and outer round hole chamfering, and irregular chamfering.
【After-sales service】: We guarantee to provide you with the most satisfactory shopping service. Whether you have any questions about our products, please contact our customer service department. We will try our best to help you solve all the problems.

Rank No. #18

Saker Chamfer Plane-Woodworking Edge Corner Flattening Tool with Auxiliary Locator,Hand Chamfering Planer Suitable for Quick Edge Trimming of Wood (upgrade -1 Cutter Head, Black)

🧰More Efficient -Saker chamfer plane can quickly eliminate edges, and can easily and quickly add other drill bits, thus making your work easier and more accurate!
🧰Adjustable Depth - Suitable for trimming and chamfering all kinds of wood. The cutting depth can be adjusted according to the working requirements.
🧰Easy To Operate, Easy To Adjust - Equipped with horizontal and vertical bubbles for easy observation and leveling. Comfortable to hold and easy to operate. Small, portable, and easy to operate, the heart is more intimate, planing smooth level.
🧰Sharp And Hard, Safe And Efficient. - Added multiple high-strength carbon steel blades, sharp and ruthless, more efficient. At the same time, a black retaining edge is added to protect your safety in a sharp situation. Even a novice can operate it simply and quickly.
🧰Easy To Disassemble And Assemble - Saker chamfer plane with metal-gypsum board edge planing quick edge trimming wooden chisel plane tools.Easy to disassemble and assemble, simple combination, and easy to install.

Rank No. #19

Chamfer Plane-Woodworking Edge Corner Plane with Auxiliary Locator, Hand Plane Suitable for Quick Edge Trimming of Wood (W/1cuter)

chamfer plane

Rank No. #20

Jerax tools Tungsten Carbide Deburring Chamfer Tool Drill Bit 1/4" to 3/4", Remove Burr, Repair Tools for Damaged Metal Steel Screws, Bolts and Fasteners, Quick Release Hexagon Shank

[Tungsten Carbide blade]: Carbide is a much more superior material than the HSS material that other similar products use. Carbide tools resist abrasion very well. They can also withstand much higher temperatures than steel. Tools with carbide tips maintain a sharper cutting edge better than steel tools. And they generally produce a better finish when cutting, providing a cleaner and smoother cut. In short, Carbide tools cut cleaner, faster and last longer.
[Chamfer]: Easily shaves down the outer edges of a screw/bolt/pipe/rod and remove the burr. Quickly repairs damaged bolts and tightens the nuts in place without hurting your hand. No sparks, and no burns. Simplifies the repair process.
[How to use]: Put the bit over the screws/bolts first, Start with the lowest speed, slightly Apply pressure to remove the burr and Increase the speed as needed. Do not turn on the driver until the bit fully covers the screw/bolt. Otherwise, the bit would bump over the screws/bolts and become hard to control.
[Wide Application]: Effective for hardened steel, mild steel, copper, brass, wood, fiberglass and hard plastic. Can be used on some stainless steel scews/bolts but need to be cautious. If there are noises that sounds like too difficult, then quit doing that.
[Size]: Fits 1/4" up to 3/4″ (6mm -19mm) fasteners. Quick change 1/4" shank.

Last update on 2023-08-08 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best Chamfer Tool?

Do you get stressed out thinking about shopping for a great Chamfer Tool? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Chamfer Tool, which is why we have assembled a comprehensive list of the greatest Chamfer Tool available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Chamfer Tool that you consider buying. Your questions might include the following:

Is it worth buying an Chamfer Tool?
What benefits are there with buying an Chamfer Tool?
What factors deserve consideration when shopping for an effective Chamfer Tool?
Why is it crucial to invest in any Chamfer Tool, much less the best one?
Which Chamfer Tool are good in the current market?
Where can you find information like this about Chamfer Tool?

We’re convinced that you likely have far more questions than just these regarding Chamfer Tool, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Chamfer Tool, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Chamfer Tool. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Chamfer Tool buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Chamfer Tool currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of Chamfer Tool has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an Chamfer Tool?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your Chamfer Tool.
Customer Ratings: Number ratings grade Chamfer Tool objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Chamfer Tool.
Product Quality: You don’t always get what you pay for with an Chamfer Tool, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an Chamfer Tool is should be an indication of how long it will work out for you.

We always remember that maintaining Chamfer Tool information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Chamfer Tool is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

FAQ:

Q: What kind of tools are used in chamfering?

A: End Mills and Milling Cutters Outside Chamfer End Mills for Pipes, Tubes, and Rods In a single pass, these tools mill a precise, angled finish on the outside edge of pipe, tubes, and rods. Use them to deburr pipe and tube for butt welds or to shape rods and shafts for sliding into housings and holes.

Q: What’s the best angle to mill a chamfer?

A: Mill any angle from 10° to 80° with a Harvey Tool Adjustable Chamfer Cutter, which is sold with a TiN coated carbide insert and an adjustment wrench.

Q: What kind of chamfer Cutter does Harvey tool use?

A: Deburring Chamfer Cutters feature end mill tolerances with burr-style geometry, and feature high flute counts for increased feed rates. Harvey Tool Back Chamfer Cutters feature a low profile design and greater radial projection, ideal for generating chamfered features on the backside of small holes or slots.

Q: Which is better for chamfering steel or cobalt steel?

A: More heat and abrasion resistant than high-speed steel, cobalt steel has better performance on hard-to-machine materials. Made with a large number of flutes and cutting edges to lightly shear off material, these tools repair and clean out holes for machining between centers.